Resource Controls

Simply assigning a workload unit to a resource unit is insufficient for managing the quantity of resources that users consume. To manage resources, the Solaris OS provides a set of flags, actions, and signals that are referred to collectively as resource controls. Resource controls are stored in the /etc/project file or in a zone's configuration through the zonecfg command described in zonecfg(1M). The Fair Share Scheduler (FSS), for example, can allocate shares of CPU resources among workloads based on the specified importance factor for the workloads. With these resource controls, a system administrator can set privilege levels and limit definitions for a specific zone, project, task, or process. To learn how a system administrator uses resource controls, see Chapter 6, Resource Controls (Overview), in System Administration Guide: Solaris Containers-Resource Management and Solaris Zones. For programming considerations, see Chapter 5, Resource Controls.